Soldering iron



1. Soldering iron

1.1 is a perspective view of a soldering iron embodying our new design;

1.2 is a front elevation view thereof;

1.3 is a right side elevation view thereof;

1.4 is a top plan view thereof;

1.5 is a left side elevation view thereof;

1.6 is a bottom plan view thereof; and

1.7 is a rear elevation view thereof.

The parts shown by means of broken lines in the reproductions are not part of the claimed design. 

CLAIM The ornamental design for a soldering iron, as shown and described. 